Subtracting twice the last digit from the number formed by the remaining digits of 574 gives which number?
A49
B53
C65
D41
Answer & Solution
Correct answer: A. 49
Remove the last digit 4 to get 57, then subtract 2 x 4 = 8, which gives 49, a multiple of 7, so 574 is divisible by 7.
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